EP0787423A1 - Mower housing and blower - Google Patents

Mower housing and blower Download PDF

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Publication number
EP0787423A1
EP0787423A1 EP97100732A EP97100732A EP0787423A1 EP 0787423 A1 EP0787423 A1 EP 0787423A1 EP 97100732 A EP97100732 A EP 97100732A EP 97100732 A EP97100732 A EP 97100732A EP 0787423 A1 EP0787423 A1 EP 0787423A1
Authority
EP
European Patent Office
Prior art keywords
housing
blower
mower
mower housing
fan
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP97100732A
Other languages
German (de)
French (fr)
Other versions
EP0787423B1 (en
Inventor
Curtis Reinhard Bening
Harlin James Trefz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Deere and Co
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Deere and Co
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Filing date
Publication date
Application filed by Deere and Co filed Critical Deere and Co
Publication of EP0787423A1 publication Critical patent/EP0787423A1/en
Application granted granted Critical
Publication of EP0787423B1 publication Critical patent/EP0787423B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D43/00—Mowers combined with apparatus performing additional operations while mowing
    • A01D43/06—Mowers combined with apparatus performing additional operations while mowing with means for collecting, gathering or loading mown material
    • A01D43/077—Mowers combined with apparatus performing additional operations while mowing with means for collecting, gathering or loading mown material with auxiliary means, e.g. fans, for transporting the mown crop
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D2101/00—Lawn-mowers
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D34/00—Mowers; Mowing apparatus of harvesters
    • A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
    • A01D34/412—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
    • A01D34/63—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis

Definitions

  • the invention relates to a mower deck and blower that is horizontally pivotably connected to the mower deck, is provided with a component that can be driven from the mower deck via a belt drive, is adjustable between an operating position on the mower deck and a second position pivoted away from the mower deck, and can be locked in the operating position is.
  • Such a combination of devices is known from document US-A-5 240 461.
  • a mower is usually suspended under a lawn tractor, with the mower blowing out the cut material laterally. If the material is then not to be placed on the previously cut lawn, it must be collected, for example in a container attached to or carried by the lawn tractor. The material gets into this through an emptying pipe, which connects to a blower, which in turn is provided at the discharge opening of the mower.
  • the fan wheel belonging to the fan is driven by a drive pulley on the mower via a belt. The belt tension is maintained via a tension pulley.
  • the tensioning pulley itself is adjusted when a hand lever is released, via which a lock for the blower is released, such that the belt is no longer tensioned and can be removed from the drive pulley.
  • the belt must be removed when the blower is pivoted into its second position, since the articulation point of the blower is at one end of the blower housing and the belt is guided into the blower housing at the other end thereof. If the blower housing is now to be cleaned, the belt must first be removed so that the blower can be adjusted to its second position. When working in wet or long grass, such mowers tend to become clogged and need to be cleared. The fan must be unlocked and moved to its second position.
  • the invention provides that the locking device has a resilient arm which can be braced with a hook part.
  • the arm is pivotally mounted on the blower housing between its ends, the hook part being arranged on the blower housing and an eyelet being provided on the mower housing, in which one end of the arm, which is designed as a catch hook, engages in the operating position.
  • blower housing is provided in a region remote from the lock with a sleeve which can be plugged onto a support pin on the mower housing.
  • the fan housing is in relation to the direction of travel Area of its rear end pivotally connected to the mower housing, the locking being provided at the front end.
  • a pivotable fan 10 can be seen in a perspective view, which is connected to a mower housing 12.
  • the inlet opening 14 of the blower 10 is brought into register with the outlet opening 16 of the mower housing 12 in the operating position, the mower housing being typically mounted below a small tractor or below a similar vehicle.
  • the blower 10 can be detachably connected to the mower housing 12 and has a lock 18 at its front end 20, via which the blower 10 can be locked to the mower housing 12.
  • the blower 10 is provided with an outlet 24, to which an emptying pipe 26 can be connected, via which material conveyed by the blower 10 can get into a collecting truck pulled by the small tractor.
  • a collection container can of course also be connected to the rear of the tractor.
  • the blower 10 is also equipped on its outside with a cover or a covering 28, which serves to cover and protect the drive components provided there.
  • FIG. 2 to 4 show the fan in different positions seen from above, with FIG. 2 showing the closed position.
  • a frame part 30 serving for connection to the mower housing with two support legs 32 and 34 and a sleeve 36 (see FIG. 5).
  • the frame part is pivotally connected to the mower housing via the sleeve, for which purpose the sleeve 36 is pushed onto a support pin 38 provided on the mower housing 12.
  • the L-shaped frame part 30 is connected, for example welded, to a plate 40, which in turn carries the blower housing 42.
  • the frame part 30 is also provided with a boom 44 which carries a pulley 46, which serves to change the direction of a drive belt 48 when coming from the deck deck is deflected to a pulley 52, which with the Blower wheel 54 is drivingly connected.
  • a tensioning disk 56 is also still supported at the outer end of the arm 44.
  • the tensioning disk 56 is received by one end part 58 of a lever part 60, the other end part 62 of which is connected to a swivel part 64 which is mounted on the arm 44.
  • a spring 66 tries to turn the lever part clockwise with reference to FIG. 2 and thus also the tensioning disk in the same direction of rotation about the axis of the swivel part 64.
  • the lever part 60 is still provided at its end part 58 with a protruding eyelet 68 which has an opening.
  • a sliding part 70, to which a rod 72 belongs, is anchored at one end in this opening.
  • the rod 72 is adjustable in a slot 74 in a tab 76, which can best be seen from FIGS. 6 and 7.
  • the rod 72 is provided at its other end with an upwardly projecting handle 78 which protrudes through an opening 80 in the casing 28 which can be seen in FIG. 1.
  • the slot 74 is formed like a keyhole and is therefore provided with a thinner upper section 82 through which the rod 72 can also pass.
  • the rod is also provided with a stop 84 which surrounds the rod and has an outer diameter which is greater than the slot width in the section 82.
  • the spring 66 can be used to pull the stop against the tab 76, the slot opening of which in the lower region is such is that it lets the attack go through.
  • the lock 18 provided at the front end 20 of the blower in the preferred embodiment consists essentially of a resilient metal rod 86 in the form of an arm bent several times. 1, 2 and 3 it can be seen that the rod 86 is pivotally connected to the blower housing 42 at the point 88 and has a hook part 90 at its front end or the mower housing end which engages in the opening of an eyelet 92 should, which is provided on the mower housing 12.
  • the the other end of the metal rod 86 is long enough and thus also flexible enough to be inserted into the catch recess of a catch hook 94 projecting downwards, which in turn is provided on the blower housing 42. The lock is thus guided around the front end of the fan.
  • the blower In the operating position of the blower 10, as can be seen from FIG. 1, the blower is connected to the outlet 16 of the mower housing, which takes place at the front end 20 via the lock 18.
  • the material cut by the knives rotating in the mower housing is thrown through the outlet opening 16 in the mower housing into the inlet opening 14 in the blower 10 and into the blower wheel space 96 of the blower, where it is rotated clockwise with reference to FIG revolving impeller is further conveyed through the outlet 24 of the fan.
  • the belt 48 driving the impeller 54 is driven by the drive pulley 50 provided on the top of the mower deck.
  • the belt 48 is then passed around the belt deflecting pulley 46, which is provided at the rear end 22 of the fan, and further around the pulley 52 on the impeller and back and around the tension pulley 56 until finally to the drive pulley.
  • the belt tension required for driving the impeller is generated by the tensioning pulley which, with reference to FIGS. 2 and 3, wants to rotate clockwise about its axis of rotation or its pivoting part 64 via the spring 66.
  • the rod 72 In operational use and when the belt is tensioned, the rod 72 is located in the lower and larger hole area 98 of the slot 74 in the tab 76, the stop 84 being located to the left of the tab 76, as can be seen from FIG. 4.
  • the operator must first stop the small tractor to clean the blower and drive to the blower interrupt.
  • the drive to the mower must also be interrupted for safety reasons.
  • the operator can then pivot the blower into an open or accessible position, as can be seen in FIG. 3.
  • the operator first releases the handle 100 of the metal bar 86 from the catch hook 94 by pushing the handle inwards and then downwards.
  • the hook part 90 at the other end of the metal rod also emerges from the opening in the eyelet 92 on the mower housing 12.
  • the front end 20 of the blower 10 can then in about the axis of the support pin 38 3, in which the interior of the blower chamber 96 of the blower or the outlet 16 of the mower housing are easily accessible.
  • the operator also wants to relax the drive belt for the cleaning work, he moves the rod 72 from the large slot opening 98 into the narrower upper part 82 of the slot 74 in the tab 76. Since the rod 72 with the lever part 60, which is due to the spring action wants to turn clockwise, is connected, it is adjusted accordingly by the lever part. On the other hand, it is also possible that the operator may move the rod from its position according to FIG. 4 to its position according to FIG. 5 after the blower has been opened by pulling the handle 78 forward, the stop 84 through the large one Slot opening 98 in tab 76 passes through. The rod is then adjusted into the upper and narrower section 82 of the slot 74, after which the spring 66 acting on the lever part can pull the stop 84 against the tab to abut.
  • blower Since the blower is horizontally pivotably connected to the mower housing at its rear left end and can be locked to the mower housing at its front end by means of a quick-release fastener, it can be easily opened for clogging for cleaning purposes.
  • the drive belt is easy to relax and can also be easily removed if desired. The same also applies to the dismantling of the entire fan, since it is only attached to the support pin 38.

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  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Harvester Elements (AREA)

Abstract

The fan is horizontally pivotable on a mowing machine housing (12) between an operating position on the housing and a second position away from the housing. The fan can be locked in the operating position by a lock (18) with a spring arm (86) which clamps to a hook part (90). Preferably the arm is mounted pivotably between its ends on the fan housing (42) and an eye (92) is provided on the mowing machine housing in which one end of the arm, in the form of a hook (94) engages. The fan housing preferably has a bush (36) which fits on to a support pin (38) in the mowing machine housing when in the operative position.

Description

Die Erfindung bezieht sich auf ein Mähwerksgehäuse und Gebläse, das am Mähwerksgehäuse horizontal schwenkbar anschließbar ist, mit einer vom Mähwerksgehäuse aus über einen Riementrieb antreibbaren Komponente versehen ist, zwischen einer Betriebsstellung am Mähwerksgehäuse und einer zweiten vom Mähwerksgehäuse weggeschwenkten Stellung verstellbar ist und in der Betriebsstellung verriegelbar ist.The invention relates to a mower deck and blower that is horizontally pivotably connected to the mower deck, is provided with a component that can be driven from the mower deck via a belt drive, is adjustable between an operating position on the mower deck and a second position pivoted away from the mower deck, and can be locked in the operating position is.

Eine derartige Gerätekombination ist aus dem Dokument US-A-5 240 461 bekannt. Hierbei ist normalerweise ein Mähwerk unter einem Rasentraktor aufgehängt, wobei das Mähwerk das geschnittene Gut seitlich ausbläst. Soll das Gut dann nicht auf den zuvor geschnittenen Rasen abgelegt werden, so ist es zu sammeln, beispielsweise in einem an dem Rasentraktor angebauten oder von diesem mitgeführten Container. In diesen gelangt das Gut durch ein Entleerrohr, das sich an ein Gebläse anschließt, das seinerseits an der Auswurföffnung des Mähers vorgesehen ist. In der Regel wird das zum Gebläse gehörige Gebläserad von einer Antriebsscheibe am Mähwerk aus über einen Riemen angetrieben. Die Riemenspannung wird über eine Spannscheibe aufrechterhalten.Such a combination of devices is known from document US-A-5 240 461. A mower is usually suspended under a lawn tractor, with the mower blowing out the cut material laterally. If the material is then not to be placed on the previously cut lawn, it must be collected, for example in a container attached to or carried by the lawn tractor. The material gets into this through an emptying pipe, which connects to a blower, which in turn is provided at the discharge opening of the mower. As a rule, the fan wheel belonging to the fan is driven by a drive pulley on the mower via a belt. The belt tension is maintained via a tension pulley.

Die Spannscheibe selbst wird bei Betätigung eines Handhebels, über den eine Verriegelung für das Gebläse gelöst wird, derart verstellt, daß der Riemen nicht mehr gespannt ist und von der Antriebsscheibe abgenommen werden kann. Der Riemen muß abgenommen werden, wenn das Gebläse in seine zweite Stellung verschwenkt wird, da sich die Anlenkstelle des Gebläses an einem Ende des Gebläsegehäuses befindet und der Riemen am anderen Ende des Gebläsegehäuses in dieses geführt ist. Soll nun das Gebläsegehäuse gereinigt werden, muß zunächst der Riemen entfernt werden, damit das Gebläse in seine zweite Stellung verstellbar ist. Bei Arbeiten in nassem oder langem Gras neigen derartige Mäher leicht zu Verstopfungen, die behoben werden müssen. Das Gebläse muß entriegelt und in seine zweite Stellung verbracht werden.The tensioning pulley itself is adjusted when a hand lever is released, via which a lock for the blower is released, such that the belt is no longer tensioned and can be removed from the drive pulley. The belt must be removed when the blower is pivoted into its second position, since the articulation point of the blower is at one end of the blower housing and the belt is guided into the blower housing at the other end thereof. If the blower housing is now to be cleaned, the belt must first be removed so that the blower can be adjusted to its second position. When working in wet or long grass, such mowers tend to become clogged and need to be cleared. The fan must be unlocked and moved to its second position.

Das Entriegeln soll in einfacher Weise erfolgen können, wobei das Gebläse nach einem weiteren Aspekt der Erfindung auch leicht abgenommen werden kann. Hierzu sieht die Erfindung vor, daß die Verriegelungsvorrichtung einen federnden Arm aufweist, der mit einem Hakenteil verspannbar ist. In einfacher Weise ist dabei der Arm zwischen seinen Enden an dem Gebläsegehäuse schwenkbar gelagert, wobei der Hakenteil am Gebläsegehäuse angeordnet und am Mähwerksgehäuse eine Öse vorgesehen ist, in die in der Betriebsstellung das eine Ende des Armes, das als Fanghaken ausgebildet ist, eingreift. Durch diese Maßnahmen ist eine besonders einfache und leicht zu betätigende Verriegelung geschaffen. Bei einem Lösen der Verriegelung verbleiben alle Teile bis auf die Öse an dem Gebläsegehäuse. Ein leichter Abbau des Gebläsegehäuses ist dadurch möglich, was auch noch dadurch unterstützt wird, daß das Gebläsegehäuse in einem der Verriegelung abgelegenen Bereich mit einer Hülse versehen ist, die auf einen Tragzapfen an dem Mähwerksgehäuse aufsteckbar ist. Im einzelnen ist mit Bezug auf die Fahrtrichtung das Gebläsegehäuse im Bereich seines rückwärtigen Endes mit dem Mähwerksgehäuse schwenkbar verbunden, wobei die Verriegelung am frontseitigen Ende vorgesehen ist.Unlocking should be possible in a simple manner, wherein the blower can also be easily removed according to a further aspect of the invention. For this purpose, the invention provides that the locking device has a resilient arm which can be braced with a hook part. In a simple manner, the arm is pivotally mounted on the blower housing between its ends, the hook part being arranged on the blower housing and an eyelet being provided on the mower housing, in which one end of the arm, which is designed as a catch hook, engages in the operating position. These measures create a particularly simple and easy-to-operate lock. When the lock is released, all parts remain on the blower housing except for the eyelet. An easy removal of the blower housing is possible, which is also supported by the fact that the blower housing is provided in a region remote from the lock with a sleeve which can be plugged onto a support pin on the mower housing. In detail, the fan housing is in relation to the direction of travel Area of its rear end pivotally connected to the mower housing, the locking being provided at the front end.

In der Zeichnung ist ein nachfolgend näher erläutertes Ausführungsbeispiel der Erfindung dargestellt. Es zeigt:

Fig. 1
ein an ein Mähwerksgehäuse angeschlossenes Gebläse in perspektivischer Darstellung,
Fig. 2
eine schematische Darstellung des Gebläses in seiner Betriebsstellung mit gespanntem Antriebsriemen,
Fig. 3
das Gebläse in seiner entriegelten Wartungsstellung und entspanntem Riemen,
Fig. 4
das Gebläse in seiner Wartungsstellung mit gespanntem Riemen,
Fig. 5
das Gebläse in Seitenansicht und entspanntem Riemen,
Fig. 6
eine Lasche mit einer schlüssellochähnlichen Öffnung zum Feststellen der Spannscheibe und
Fig. 7
die Lasche nach Fig. 6 in Seitenansicht.
In the drawing, an embodiment of the invention explained in more detail below is shown. It shows:
Fig. 1
a blower connected to a mower housing in a perspective view,
Fig. 2
a schematic representation of the fan in its operating position with the drive belt tensioned,
Fig. 3
the blower in its unlocked maintenance position and relaxed belt,
Fig. 4
the blower in its maintenance position with the belt tensioned,
Fig. 5
the fan in side view and the belt relaxed,
Fig. 6
a tab with a keyhole-like opening for locking the tensioning washer and
Fig. 7
6 in side view.

In Fig. 1 der Zeichnung ist in perspektivischer Darstellung ein schwenkbares Gebläse 10 zu erkennen, das an einem Mähwerksgehäuse 12 angeschlossen ist. Die Einlassöffnung 14 des Gebläses 10 wird mit der Auslassöffnung 16 des Mähwerksgehäuses 12 in der Betriebsstellung in Deckung gebracht, wobei das Mähwerksgehäuse in typischer Weise unterhalb eines Kleintraktors oder unterhalb eines ähnlichen Fahrzeugs angebracht ist.In Fig. 1 of the drawing, a pivotable fan 10 can be seen in a perspective view, which is connected to a mower housing 12. The inlet opening 14 of the blower 10 is brought into register with the outlet opening 16 of the mower housing 12 in the operating position, the mower housing being typically mounted below a small tractor or below a similar vehicle.

Das Gebläse 10 kann an das Mähwerksgehäuse 12 lösbar angeschlossen werden und weist eine Verriegelung 18 an seinem vorderem Ende 20 auf, über die das Gebläse 10 mit dem Mähwerksgehäuse 12 verriegelt werden kann. An seinem rückwärtigen Ende 22 ist das Gebläse 10 mit einem Auslass 24 versehen, an dem ein Entleerrohr 26 anschließbar ist, über das von dem Gebläse 10 gefördertes Gut in einen von dem Kleinschlepper gezogenen Sammelwagen gelangen kann. Anstelle des Sammelwagens kann natürlich auch ein Sammelbehälter an die Rückseite des Traktors angeschlossen sein. Das Gebläse 10 ist an seiner Außenseite noch mit einem Deckel oder einer Verkleidung 28 ausgestattet, die zum Abdecken und zum Schutz von dort vorgesehenen Antriebskomponenten dient.The blower 10 can be detachably connected to the mower housing 12 and has a lock 18 at its front end 20, via which the blower 10 can be locked to the mower housing 12. At its rear end 22, the blower 10 is provided with an outlet 24, to which an emptying pipe 26 can be connected, via which material conveyed by the blower 10 can get into a collecting truck pulled by the small tractor. Instead of the collection truck, a collection container can of course also be connected to the rear of the tractor. The blower 10 is also equipped on its outside with a cover or a covering 28, which serves to cover and protect the drive components provided there.

Die Fig. 2 bis 4 zeigen das Gebläse in verschiedenen Stellungen von oben gesehen, wobei Fig. 2 die geschlossene Stellung zeigt. Man erkennt dort einen zum Anschluß an das Mähwerksgehäuse dienenden Rahmenteil 30 mit zwei Tragschenkeln 32 und 34 und einer Hülse 36 (siehe Fig. 5). Über die Hülse wird der Rahmenteil mit dem Mähwerksgehäuse schwenkbar verbunden, wozu die Hülse 36 auf einen auf dem Mähwerksgehäuse 12 vorgesehenen Tragzapfen 38 aufgesteckt wird. Der L-förmig ausgestaltete Rahmenteil 30 ist mit einer Platte 40 verbunden, beispielsweise verschweißt, die ihrerseits das Gebläsegehäuse 42 trägt.2 to 4 show the fan in different positions seen from above, with FIG. 2 showing the closed position. One recognizes there a frame part 30 serving for connection to the mower housing with two support legs 32 and 34 and a sleeve 36 (see FIG. 5). The frame part is pivotally connected to the mower housing via the sleeve, for which purpose the sleeve 36 is pushed onto a support pin 38 provided on the mower housing 12. The L-shaped frame part 30 is connected, for example welded, to a plate 40, which in turn carries the blower housing 42.

Aus Fig. 5 ist ferner zu erkennen, daß der Rahmenteil 30 noch mit einem Ausleger 44 versehen ist, der eine Riemenscheibe 46 trägt, die zur Richtungsänderung eines Antriebsriemens 48 dient, wenn dieser vom Mähwerksdeck kommend zu einer Riemenscheibe 52 umgelenkt wird, die mit dem Gebläserad 54 antriebsmäßig verbunden ist.From Fig. 5 it can also be seen that the frame part 30 is also provided with a boom 44 which carries a pulley 46, which serves to change the direction of a drive belt 48 when coming from the deck deck is deflected to a pulley 52, which with the Blower wheel 54 is drivingly connected.

Eine Spannscheibe 56 ist außerdem noch am äußeren Ende des Auslegers 44 gelagert. Die Spannscheibe 56 wird von dem einen Endteil 58 eines Hebelteils 60 aufgenommen, dessen anderer Endteil 62 mit einem Schwenkteil 64 verbunden ist, der auf dem Ausleger 44 gelagert ist. Eine Feder 66 versucht den Hebelteil mit Bezug auf Fig. 2 im Uhrzeigersinn zu drehen und damit auch die Spannscheibe in derselben Drehrichtung um die Achse des Schwenkteils 64.A tensioning disk 56 is also still supported at the outer end of the arm 44. The tensioning disk 56 is received by one end part 58 of a lever part 60, the other end part 62 of which is connected to a swivel part 64 which is mounted on the arm 44. A spring 66 tries to turn the lever part clockwise with reference to FIG. 2 and thus also the tensioning disk in the same direction of rotation about the axis of the swivel part 64.

Aus Fig. 4 ist zu erkennen, daß der Hebelteil 60 an seinem Endteil 58 noch mit einer abstehenden Öse 68 versehen ist, die eine Öffnung aufweist. Ein Schiebeteil 70, zu dem eine Stange 72 gehört, ist mit seinem einen Ende in dieser Öffnung verankert. Die Stange 72 ist in einem Schlitz 74 in einer Lasche 76 verstellbar, die am besten aus den Fig. 6 und 7 zu ersehen ist. Die Stange 72 ist an ihrem anderen Ende mit einem nach oben abstehenden Handgriff 78 versehen, der durch eine aus Fig. 1 erkennbare Öffnung 80 in der Verkleidung 28 herausragt. Der Schlitz 74 ist schlüssellochähnlich ausgebildet und damit mit einem dünneren oberen Abschnitt 82 ausgestattet, durch den die Stange 72 ebenfalls hindurchtreten kann. Die Stange ist noch mit einem Anschlag 84 versehen, der die Stange umgibt und einen Außendurchmesser aufweist, der größer ist als die Schlitzbreite in dem Abschnitt 82. Über die Feder 66 kann der Anschlag gegen die Lasche 76 gezogen werden, deren Schlitzöffnung im unteren Bereich derart ist, daß sie den Anschlag durchtreten lässt.From Fig. 4 it can be seen that the lever part 60 is still provided at its end part 58 with a protruding eyelet 68 which has an opening. A sliding part 70, to which a rod 72 belongs, is anchored at one end in this opening. The rod 72 is adjustable in a slot 74 in a tab 76, which can best be seen from FIGS. 6 and 7. The rod 72 is provided at its other end with an upwardly projecting handle 78 which protrudes through an opening 80 in the casing 28 which can be seen in FIG. 1. The slot 74 is formed like a keyhole and is therefore provided with a thinner upper section 82 through which the rod 72 can also pass. The rod is also provided with a stop 84 which surrounds the rod and has an outer diameter which is greater than the slot width in the section 82. The spring 66 can be used to pull the stop against the tab 76, the slot opening of which in the lower region is such is that it lets the attack go through.

Die am vorderen Ende 20 des Gebläses vorgesehene Verriegelung 18 besteht beim bevorzugten Ausführungsbeispiel im wesentlichen aus einer federnden Metalstange 86 in Form eines mehrmals gebogenen Armes. Aus den Fig. 1, 2 und 3 ist zu ersehen, daß die Stange 86 an der Stelle 88 schwenkbar mit dem Gebläsegehäuse 42 verbunden ist und an ihrem vorderen oder dem Mähwerksgehäuse zugelegenen Ende einen Hakenteil 90 aufweist, der in die Öffnung einer Öse 92 eingreifen soll, die am Mähwerksgehäuse 12 vorgesehen ist. Das andere Ende der Metalstange 86 ist lang genug und damit auch flexibel genug, um in die Fangausnehmung eines nach unten vorstehenden Fanghakens 94 gesteckt zu werden, der seinerseits am Gebläsegehäuse 42 vorgesehen ist. Damit ist die Verriegelung um das vordere Ende des Gebläses geführt.The lock 18 provided at the front end 20 of the blower in the preferred embodiment consists essentially of a resilient metal rod 86 in the form of an arm bent several times. 1, 2 and 3 it can be seen that the rod 86 is pivotally connected to the blower housing 42 at the point 88 and has a hook part 90 at its front end or the mower housing end which engages in the opening of an eyelet 92 should, which is provided on the mower housing 12. The the other end of the metal rod 86 is long enough and thus also flexible enough to be inserted into the catch recess of a catch hook 94 projecting downwards, which in turn is provided on the blower housing 42. The lock is thus guided around the front end of the fan.

In der Betriebsstellung des Gebläses 10 ist, wie aus Fig. 1 zu erkennen ist, das Gebläse mit dem Auslaß 16 des Mähwerksgehäuses verbunden, was am vorderen Ende 20 über die Verriegelung 18 erfolgt.In the operating position of the blower 10, as can be seen from FIG. 1, the blower is connected to the outlet 16 of the mower housing, which takes place at the front end 20 via the lock 18.

Während des Einsatzes wird das durch die im Mähwerksgehäuse umlaufenden Messer geschnittene Gut durch die Auslassöffnung 16 im Mähwerksgehäuse in die Einlassöffnung 14 im Gebläse 10 geschleudert und in den Gebläseradraum 96 des Gebläses gelangen, wo es durch die Umlaufbewegung des mit Bezug auf Fig. 5 im Uhrzeigersinn umlaufenden Gebläserades durch den Auslass 24 des Gebläses weiter gefördert wird.During operation, the material cut by the knives rotating in the mower housing is thrown through the outlet opening 16 in the mower housing into the inlet opening 14 in the blower 10 and into the blower wheel space 96 of the blower, where it is rotated clockwise with reference to FIG revolving impeller is further conveyed through the outlet 24 of the fan.

Der das Gebläserad 54 antreibende Riemen 48 wird von der Antriebsriemenscheibe 50, die auf der Oberseite des Mähwerksgehäuses vorgesehen ist, aus angetrieben. Der Riemen 48 ist dann um die den Riemen umlenkende Riemenscheibe 46 geführt, die an dem rückwärtigen Ende 22 des Gebläses vorgesehen ist, und weiter um die Riemenscheibe 52 am Gebläserad und zurück und um die Spannscheibe 56 bis schließlich zur Antriebsriemenscheibe.The belt 48 driving the impeller 54 is driven by the drive pulley 50 provided on the top of the mower deck. The belt 48 is then passed around the belt deflecting pulley 46, which is provided at the rear end 22 of the fan, and further around the pulley 52 on the impeller and back and around the tension pulley 56 until finally to the drive pulley.

Die für den Antrieb des Gebläserades erforderliche Riemenspannung wird durch die Spannscheibe erzeugt, die mit Bezug auf die Fig. 2 und 3 über die Feder 66 im Uhrzeigersinn um ihre Drehachse oder ihren Schwenkteil 64 drehen will. Im betrieblichen Einsatz und bei gespanntem Riemen befindet sich die Stange 72 in dem unteren und größeren Lochbereich 98 des Schlitzes 74 in der Lasche 76, wobei, wie aus Fig. 4 zu ersehen ist, sich der Anschlag 84 links von der Lasche 76 befindet.The belt tension required for driving the impeller is generated by the tensioning pulley which, with reference to FIGS. 2 and 3, wants to rotate clockwise about its axis of rotation or its pivoting part 64 via the spring 66. In operational use and when the belt is tensioned, the rod 72 is located in the lower and larger hole area 98 of the slot 74 in the tab 76, the stop 84 being located to the left of the tab 76, as can be seen from FIG. 4.

Sollte nun der Rasenmäher in seinem Einsatz auf nasses oder zu langes Gras treffen oder andere Bedingungen vorfinden, die eine Verstopfung verursachen oder den Gutfluss durch das Gebläse 10 behindern, so muß die Bedienungsperson den Kleintraktor zum Reinigen des Gebläses zunächst anhalten und den Antrieb zu dem Gebläse unterbrechen. Aus Sicherheitsgründen ist auch der Antrieb zu dem Mähwerk zu unterbrechen. Danach kann die Bedienungsperson das Gebläse in eine offene oder für die Bedienungsperson zugängliche Stellung, wie sie aus Fig. 3 zu erkennen ist, verschwenken. Um dies tun zu können, löst die Bedienungsperson zunächst den Handgriff 100 der Metalstange 86 von dem Fanghaken 94, indem sie den Handgriff nach innen und dann nach unten drückt. Wenn die Metallstange aus ihrer Stellung in Fig. 2 in ihre Stellung nach Fig. 3 verstellt wird, tritt auch der Hakenteil 90 am anderen Ende der Metallstange aus der Öffnung in der Öse 92 am Mähwerksgehäuse 12 aus. Das vordere Ende 20 des Gebläses 10 kann dann um die Achse des Tragzapfens 38 in die Stellung nach Fig. 3 verschwenkt werden, in der das Innere der Gebläsekammer 96 des Gebläses oder der Auslass 16 des Mähwerksgehäuses gut zugänglich sind.If the lawnmower encounters wet or too long grass or if there are other conditions that cause blockage or impede the flow of crop through the blower 10, the operator must first stop the small tractor to clean the blower and drive to the blower interrupt. The drive to the mower must also be interrupted for safety reasons. The operator can then pivot the blower into an open or accessible position, as can be seen in FIG. 3. In order to do this, the operator first releases the handle 100 of the metal bar 86 from the catch hook 94 by pushing the handle inwards and then downwards. When the metal rod is moved from its position in FIG. 2 to its position according to FIG. 3, the hook part 90 at the other end of the metal rod also emerges from the opening in the eyelet 92 on the mower housing 12. The front end 20 of the blower 10 can then in about the axis of the support pin 38 3, in which the interior of the blower chamber 96 of the blower or the outlet 16 of the mower housing are easily accessible.

Will die Bedienungsperson auch noch für die Reinigungsarbeiten den Antriebsriemen entspannen, so verstellt sie die Stange 72 aus der großen Schlitzöffnung 98 in den schmaleren oberen Teil 82 des Schlitzes 74 in der Lasche 76. Da die Stange 72 mit dem Hebelteil 60, der infolge der Federwirkung im Uhrzeigersinn drehen will, verbunden ist, wird sie durch den Hebelteil entsprechend verstellt. Andererseits ist es aber auch möglich, daß die Bedienungsperson eventuell nach dem Öffnen des Gebläses die Stange aus ihrer Stellung nach Fig. 4 in ihre Stellung nach Fig. 5 verstellt, indem sie den Handgriff 78 nach vorne zieht, wobei der Anschlag 84 durch die große Schlitzöffnung 98 in der Lasche 76 durchtritt. Danach wird die Stange in den oberen und schmaleren Abschnitt 82 des Schlitzes 74 verstelllt, wonach die auf den Hebelteil wirkende Feder 66 den Anschlag 84 gegen die Lasche zur Anlage ziehen kann.If the operator also wants to relax the drive belt for the cleaning work, he moves the rod 72 from the large slot opening 98 into the narrower upper part 82 of the slot 74 in the tab 76. Since the rod 72 with the lever part 60, which is due to the spring action wants to turn clockwise, is connected, it is adjusted accordingly by the lever part. On the other hand, it is also possible that the operator may move the rod from its position according to FIG. 4 to its position according to FIG. 5 after the blower has been opened by pulling the handle 78 forward, the stop 84 through the large one Slot opening 98 in tab 76 passes through. The rod is then adjusted into the upper and narrower section 82 of the slot 74, after which the spring 66 acting on the lever part can pull the stop 84 against the tab to abut.

Aus dem Vorstehenden ergibt sich somit, daß sich die Kombination von Gebläse und Mähwerk auch bei langem oder nassem Gras einsetzen lässt, wo öfters Verstopfungen zu befürchten sind. Da das Gebläse mit dem Mähwerksgehäuse an seinem rückwärtigen linken Ende horizontal schwenkar verbunden ist und an seinem vorderen Ende über einen Schnellverschluß mit dem Mähwerksgehäuse verriegelbar ist, lässt es sich bei Verstopfungen zu Reinigungszwecken leicht öffnen. Der Antriebsriemen ist leicht zu entspannen und kann, falls dies gewünscht wird, auch dann leicht entfernt werden. Entsprechendes gilt auch für den Abbau des gesamten Gebläses, da dieses lediglich auf den Tragzapfen 38 aufgesteckt ist.It follows from the above that the combination of fan and mower can also be used on long or wet grass, where blockages are often to be feared. Since the blower is horizontally pivotably connected to the mower housing at its rear left end and can be locked to the mower housing at its front end by means of a quick-release fastener, it can be easily opened for clogging for cleaning purposes. The drive belt is easy to relax and can also be easily removed if desired. The same also applies to the dismantling of the entire fan, since it is only attached to the support pin 38.

Claims (4)

Mähwerksgehäuse und Gebläse, das am Mähwerksgehäuse (12) horizontal schwenkbar anschließbar ist, mit einer vom Mähwerksgehäuse (12) aus über einen Riementrieb antreibbaren Komponente versehen ist, zwischen einer Betriebsstellung am Mähwerksgehäuse (12) und einer zweiten vom Mähwerksgehäuse (12) weggeschwenkten Stellung verstellbar ist und in der Betriebsstellung verriegelbar ist, dadurch gekennzeichnet, daß die Verriegelungsvorrichtung (18) einen federnden Arm (86) aufweist, der mit einem Hakenteil (90) verspannbar ist.Mower housing and blower, which can be horizontally pivoted to the mower housing (12), is provided with a component that can be driven from the mower housing (12) via a belt drive, adjustable between an operating position on the mower housing (12) and a second position pivoted away from the mower housing (12) and can be locked in the operating position, characterized in that the locking device (18) has a resilient arm (86) which can be braced with a hook part (90). Kombination nach Anspruch 1, dadurch gekennzeichnet, daß der Arm (86) zwischen seinen Enden an dem Gebläsegehäuse (42) schwenkbar gelagert ist, wobei der Hakenteil (90) am Gebläsegehäuse (42) angeordnet und am Mähwerksgehäuse (12) eine Öse (92) vorgesehen ist, in die in der Betriebsstellung das eine Ende des Armes, das als Fanghaken (94) ausgebildet ist, eingreift.Combination according to Claim 1, characterized in that the arm (86) is pivotally mounted on the blower housing (42) between its ends, the hook part (90) being arranged on the blower housing (42) and an eyelet (92) on the mower housing (12). is provided, in which in the operating position one end of the arm, which is designed as a catch hook (94), engages. Kombination nach Anspruch 1, dadurch gekennzeichnet, daß das Gebläsegehäuse (42) in einem der Verriegelung abgelegenen Bereich mit einer Hülse (36) versehen ist, die auf einen Tragzapfen (38) an dem Mähwerksgehäuse (12) aufsteckbar ist.Combination according to Claim 1, characterized in that the blower housing (42) is provided in a region remote from the lock with a sleeve (36) which can be plugged onto a support pin (38) on the mower housing (12). Kombination nach einem oder mehreren der vorstehenden Ansprüche, dadurch gekennzeichnet, daß mit Bezug auf die Fahrtrichtung das Gebläsegehäuse (42) im Bereich seines rückwärtigen Endes mit dem Mähwerksgehäuse (12) schwenkbar verbunden ist, wobei die Verriegelung am frontseitigen Ende vorgesehen ist.Combination according to one or more of the preceding claims, characterized in that, with respect to the direction of travel, the blower housing (42) is pivotably connected to the mower housing (12) in the region of its rear end, the locking being provided at the front end.
EP97100732A 1996-02-02 1997-01-17 Mower housing and blower Expired - Lifetime EP0787423B1 (en)

Applications Claiming Priority (2)

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US08/595,686 US5669211A (en) 1996-02-02 1996-02-02 Pivotal mounting for auxiliary blower
US595686 1996-02-02

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EP0787423B1 EP0787423B1 (en) 2000-05-10

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DE (1) DE59701612D1 (en)

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Also Published As

Publication number Publication date
CA2191989A1 (en) 1997-08-03
CA2191989C (en) 2000-03-14
US5669211A (en) 1997-09-23
DE59701612D1 (en) 2000-06-15
EP0787423B1 (en) 2000-05-10

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